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304 Stainless Steel U-Bolt 3" Pipe 4.25" W x 4.30" L

Expert Overview

Engineered for robust pipe support, this 304 stainless steel U-bolt ensures exceptional corrosion resistance. Designed to securely fasten 3" nominal pipes with superior strength and longevity.

StandardASTM A106
Material304 Stainless Steel
FinishPlain
GradeN/A
Inside Width ( A)4.25"
Inside Length ( B)4.30"
Thread Size1/2"-13

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this U-bolt is manufactured from premium 304 stainless steel, offering superior resistance to corrosion, oxidation, and pitting, even in harsh marine and chemical environments. With an inside width (A) of 4.25 inches and an inside length (B) of 4.30 inches, it is precisely engineered to accommodate standard 3-inch nominal pipe sizes. The robust 1/2"-13 UNC thread provides substantial clamping force, ensuring secure and stable mounting for critical infrastructure, exhaust systems, and structural supports.

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Verified Global OEM Partners

This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.

3MEst. 1902
USA🇺🇸
"Science applied to life."
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LoctiteEst. 1953
Germany🇩🇪
"Industrial adhesives and sealants."
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🏆 #1 Global Adhesives
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🚀 Formula 1 & Aerospace OEM
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Certified:ISO 9001, IATF 16949
McMaster-CarrEst. 1901
USA🇺🇸
"Complete industrial supply."
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🏆 #1 Industrial Supply Standard
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🚀 US Military Approved
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🌱 Sustainable Logistics
Certified:ISO 9001 Compliant

Certifications & Compliance

RoHS Compliant:Yes
REACH Compliant:Yes
Material Traceability:Available on Request
DFARS Compliant:Yes

Installation Procedure

1. Position the U-bolt around the 3" pipe and the mounting surface. 2. Thread the nuts onto the U-bolt legs, ensuring even engagement. 3. Tighten nuts incrementally and alternately to achieve uniform pressure and secure the pipe.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASTM A106

Mechanical Properties

Tensile Strength75,000 psi (515 MPa)
Yield Strength30,000 psi (205 MPa)
Elongation in 2 in.40% min
HardnessRockwell B95 max

Chemical Composition

Carbon (C)0.08% max
Chromium (Cr)18.0 - 20.0%
Nickel (Ni)8.0 - 10.5%
Manganese (Mn)2.00% max

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1400°F (760°C)
Thermal Expansion
Typical for Material Class

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
StandardVaries by dimensionContact Sales

Corrosion Resistance Guide

EnvironmentRating
Indoor / DryExcellent
Outdoor / ExposedExcellent
Marine / SaltwaterGood
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Over-tightening U-bolt nuts.Tighten nuts to the recommended torque specification for the chosen mounting hardware to prevent pipe deformation or damage to the bolt threads.
Using the wrong size U-bolt for the pipe.Verify that the U-bolt's inside width and length are appropriate for the specific nominal pipe size to ensure a secure and proper fit.

Common Applications

  • Marine hardware and rigging
  • Exhaust system supports
  • Plumbing and pipe anchoring
  • Structural framing
  • Industrial equipment mounting

⚠️ Engineering Warnings

  • Ensure all mounting hardware (nuts and washers) are compatible with 304 stainless steel to prevent galvanic corrosion.
  • Always wear appropriate personal protective equipment (PPE) during installation.

Alternative Products to Consider

Premium U-Bolts equivalentHigher corrosion resistance (316 SS)
Economy U-Bolts optionLower cost for non-critical indoor applications

Frequently Asked Questions

Q: What is the 304 Stainless Steel U-Bolt, 3" Pipe made from?

A: This 304 Stainless Steel U-Bolt, 3" Pipe is manufactured from 304 Stainless Steel.

Q: What are the main applications?

A: Marine hardware and rigging, Exhaust system supports, Plumbing and pipe anchoring, Structural framing, Industrial equipment mounting.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.25"B4.30"C1-1/4"Thread: 1/2"-13 | Both Legs2 Hex Nuts Included

Torque Specifications

⚡ UNIT CONVERTER

Conversion factor: 1 ft-lb ≈ 1.356 Nm

Verified Compatibility

StatusMating ComponentStandardTorque SpecEngineering Notes
No verified compatibility data found for this component.